The average train between Cos Cob and Boston takes 4h 1m and the fastest train takes 3h 7m. There is a train service every few hours from Cos Cob to Boston. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run hourly between Cos Cob and Boston. The earliest departure is at 2:50 AM at night, and the last departure from Cos Cob is at 8:24 PM which arrives into Boston at 12:10 AM. All services require a transfer at Stamford and take an average of 4h 1m. The schedules shown below are for the next available departures.

6h 34m • 1 change

3h 7m • 1 change

3h 33m • 1 change

3h 34m • 1 change

6h 34m • 1 change

3h 7m • 1 change

3h 33m • 1 change

3h 34m • 1 change

6h 34m • 1 change

3h 7m • 1 change

3h 33m • 1 change

3h 34m • 1 change

6h 34m • 1 change

3h 7m • 1 change

3h 33m • 1 change

3h 34m • 1 change
Want to know about travelling from Cos Cob to Boston? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct train from Cos Cob to Boston. However, there are services departing from Cos Cob station and arriving at Boston station via Boston. The journey, including transfers, takes approximately 4h 1m.
Cos Cob to Boston train services, operated by Metro-North Railroad (MNR), depart from Stamford Amtrak Station.
Cos Cob to Boston train services, operated by Metro-North Railroad (MNR), arrive at Boston station.
The distance between Cos Cob and Boston is 257.2 km. The road distance is 318 km.
Amtrak Acela operates a train from Stamford Amtrak Station to Boston every 4 hours. Tickets cost $45–700 and the journey takes 2h 54m. Amtrak Northeast Regional also services this route every 3 hours.